Features: 1.FINE TUNING: This handheld sound changer has at least 7 different sound changes, and you can use the fine tuning button to adjust and make you get more different sounds. 2.8 EFFECTS: With 8 kinds of interesting sound effects, also provide rich simulation scene modes, such as KTV, DJ, phonograph, and recording studio. 3.WIDE COMPATIBILITY: Can be used on any mobile phone, computer, tablet, game console, switch. You need an adapter when using on computer, for iOS system needs to purchase a separate interface conversion cable. 4.EASY TO USE: Plug and play, no need to install any driver, just connect the voice changer with the device, compact in size and convenient to carry. 5.INTERESTING LIFE: You can change your voice when you talk to others on phone calls or gaming, make your life more interesting. specification:Item Type: Voice Changer Material: ABS Color: Black Battery: Polymer lithium ion battery (built in) Battery Capacity: 300mAh Charging Interface: Micro USB Mobile Phone Interface: 3.5mm Headphone Connector: 3.5mm Signal to Noise Ratio: 106dB Dynamic Range: 106dB PackageList: 1 x Voice Changer 1 x USB Charging Cable 1 x 3.5mm Audio Cable 1 x User Manual Note1. The mobile phone for IOS needs to be equipped with a transfer cable, and the transfer cable must have the audio transmission function (it is recommended to use the original cable), otherwise there is no sound output; 2. To use the product, you need to plug in the headset and speak into the microphone.